313195557681028 has 96 divisors (see below), whose sum is σ = 638771388353280. Its totient is φ = 132789858754560.

The previous prime is 313195557680939. The next prime is 313195557681059. The reversal of 313195557681028 is 820186755591313.

It is a super-2 number, since 2×313195557681028² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38376738 + ... + 45816646.

It is an arithmetic number, because the mean of its divisors is an integer number (6653868628680).

Almost surely, 2^{313195557681028} is an apocalyptic number.

It is an amenable number.

313195557681028 is an abundant number, since it is smaller than the sum of its proper divisors (325575830672252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313195557681028 is a wasteful number, since it uses less digits than its factorization.

313195557681028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7440445 (or 7440443 counting only the distinct ones).

The product of its (nonzero) digits is 54432000, while the sum is 64.

The spelling of 313195557681028 in words is "three hundred thirteen trillion, one hundred ninety-five billion, five hundred fifty-seven million, six hundred eighty-one thousand, twenty-eight".